Prepositions after adjectives - Easy Learning Grammar French

Just like verbs, some French adjectives can be linked to what follows by either à or de.

An adjective followed by de or à can be followed by a noun, a pronoun or an infinitive.

Some adjectives that can be followed by de are used to say how you feel, that you are certain about something, or that it is necessary or important to do something. These are the most common:

certain

certain

content

happy

désolé

sorry

enchanté

delighted

heureux

happy

important

important

malheureux

unhappy

nécessaire

necessary

sûr

sure

triste

sad

Tu es sûr de pouvoir venir?

Are you sure you can come?

Enchanté de faire votre connaissance.

Delighted to meet you.

Il est nécessaire de réserver.

You have to book.

Grammar Extra!

Some adjectives, such as facile (meaning easy), intéressant (meaning interesting) or impossible (meaning impossible), can be followed by either à or de. de tends to be used when you are saying something that is generally true. à tends to be used when you are saying something about someone or something in particular.